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NE50A Dia. 25 mm Absorptive ND Filter; SM1-Threaded Mount; Optical Density 5.0

NE50A Dia. 25 mm Absorptive ND Filter; SM1-Threaded Mount; Optical Density 5.0

Type
Filter
Subtype
Neutral Density Filter
Brand
Thorlabs
Product webpage
Thorlabs products in the 3DOptix catalog

Properties

Shape
Circular
Diameter
25 mm

Material

Name
N-BK7
Dispersion Equation
Sellmeier
n (λ)
1.5150823520020043
λ
633 nm
B1
1.03961212
C1
0.00600069867 μm2
B2
0.231792344
C2
0.0200179144 μm2
B3
1.01046945
C3
103.560653 μm2

NE50A Dia. 25 mm Absorptive ND Filter; SM1-Threaded Mount; Optical Density 5.0

The NE50A is a Neutral Density (ND) Filter, specifically designed for applications requiring high light attenuation. Manufactured by Thorlabs, this filter boasts a catalog number of NE50A and is available for purchase directly from their website. The current status indicates that it is in stock, ensuring prompt delivery for your optical project needs.

This circular filter, with a diameter of 25 mm, is constructed from n-BK7 Schott, a high-quality optical glass. It features a thickness of 3.6 mm, providing robustness and stability during use. The filter's design is based on a Thin Lens shape, optimizing its optical performance.

The NE50A filter's primary function is to reduce the intensity of incident light while maintaining the original color balance. This is achieved through its optical density of 5.0, which is specifically tuned for a wavelength of 633 nm. This makes it ideal for use in applications where high light reduction is required, such as in high-power laser systems or other intense light sources.

The filter's coatings further enhance its performance. Both the front and back surfaces are coated with the THo NE50A coating, which is designed to optimize the filter's light transmission and absorption characteristics. This coating ensures minimal reflection and scattering, maximizing the filter's efficiency and maintaining the quality of the transmitted light.

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